Leaf-holder



( 0 Model.)

E.H.KOHR. LEAP HOLDER. 1

No. 505,771. Patented Sept. 26, I893.

Fig.1.

a I w ult lw NEE? WITNESSES lA/VE/VTOR Emanuel H.292), MW

' citizen of the United States, residing at Typroved leaf-holder appliedto a music rack or this base in two parts the upper collar shaped UNITEDSTATES PATENT OFFICE.

EMANUEL H. KOHR, OF TYRONE, PENNSYLVANIA.

LEAF-HOLDER.

I SPECIFICATION forming part of Letters Patent No. 505,771, datedSeptember 26, 1893.

Application filed October 14, 1892.

To all whom it may concern;

Be it known that I, EMANUEL H. KOHR, a

rone, in the county of Blair and State of Pennsylvania, have inventedcertain new and useful Improvements in Leaf-Holders, of which thefollowing is a specification, reference beng had therein to theaccompanying drawlngs.

Figure 1. is a front elevation of my imstand. Fig. 2. is an enlargedview of the holder detached from the rack. Fig. 3. is a vertical sectionon line a; as Fig. 1. Fig. 4. is a section on line 1 y Fig. 2. Figs. 5,6, 7, are detached views of separate parts.

The object of my invention is to produce an economical and efficientdevice adapted to be applied to a music rack or other support, for thepurpose of holding leaves or pages of music against accidentaldisplacement, while permitting them to be intentionally moved withoutdanger of injury thereto.

The invention consists in certain features of construction andarrangement of parts, as will be referred to in the claims.

Like reference letters refer to like parts in all the figures of thedrawings.

A, B, is a base having a chamber or recess, a, formed therein with anopening which is preferably circular in form. I prefer to make member A,being centrally concaved so that when the flat part B, is united to thepart A, these two will constitute the walls of the chamber. In practiceI prefer to make these parts of sheet metal struck into proper shape bydies; but they may be made of malleable iron or other suitable material,the two memhere being united by solder or rivets. Thus there is formed afiat thin base adapted to be secured to the face of a music rack orother piece of furniture.

0, is a rotatory or swiveling post adapted to be inserted through thecircular opening of the member A, and provided at its lower end with aflange c, which fits somewhat closely within the chamber a, so that thepost Serial No. 448,873. (No model.)

can turn upon its axis while the base remains stationary.

D, is a recess formed in the rotatory post and extending from one sideof its peripheral wall nearly through to its opposite wall. This recessextends from the top of the post downward, and by reason thereof isadapted to receive a rod carrier to be described and which is seated inthe recess, and projects some distance above the top of the post.

E, is a rod carrier of a thickness about equal to the width of therecess, D, in trans: verse section, and pivoted in the recess so as tooscillate freely about its pivot in a plane which is perpendicular tothe plane in which the post 0, rotates upon the base. This rod carrieris provided, near its upper edge, with a seat at e, for a rod or arm FF. The part F, of the rod is preferably round in cross section tocorrespond with the seat 6, within which it fits loosely enough so thatit (the rod) can slide freely endwise'and can also turn freely upon itsaxis. The part F is made, preferably, by bending the end of the rod at aright angle to the main portion F, and then splitting the bent endtransversely and afterward splitting both halves so asto form four clawsor spurs f, f, as shown in Fig. 7.

G, is a foot piece or pad,preferably of rubber or some similar elasticmaterial whereby it is adapted to be clasped between the spurs f, whichtake hold upon opposite sides of its upper edge. Thus these partsconstitute an elastic foot piece or pressure.

g, is the pivot which connects the rod car rier with the rotatory post,these parts constituting, practically, a universal joint connecting therod with the base in such manner that the rod is free to move in everydirection within certain limits.

As will be seen the elastic foot or presser rests upon one page of themusic near its edge; and in order to insure a sufficient frictional gripof the foot upon the music under the varying thicknesses of books andsheet music, I propose to employ a spring of proper char acter. In thedrawings I have shown, for that purpose, a simple tongue spring II,connected at its upper end to the rod carrier with its lower endengaging with a stop which, in this instance consists of a pin d seatedin the walls of the recess. As a convenient way of attaching the springto the rod carrier I propose to slit the rear edge and insert the upperend of the spring in the throat thus formed. But of course I do not wantto be limited to any particular kind or arrangement of spring, becausemany different sorts might be employed to oscillate the rod and itscarrier about its pivot g.

By examining Fig. 3 it will be seen that the vertical wall of the recessD serves as a stop to limit, or restrict, the vibration of the carrierand the rod about the pivot g; and that if, from any cause, such as wearor looseness of parts, it becomes possible to so tilt the rod about thepivot as to raise the foot piece somewhat higher than is shown in thatfigure, then the swing of the rod in that direction will be limited bythe engagement of the rod with the top ofthe post at some distance fromthe point at which the rod is seated in the carrier; whereby unduetension of the spring is prevented. It is obvious that if the rod weremounted in a closely fitting seat formed for its reception in the postitself instead of in the pivoted carrier, and the vibration of the rodwere thus made dependent upon its own elasticity no such capability ofguarding against undue tension would exist, or does exist.

As is illustrated in Fig. 1, the base may be attached to the rack, orother music holder, at its upper edge about midway between its ends,when the device may be employed for holding the leaves on the right handside of the rack or upon the left hand side as may be desired and inconnection with books of greatly differing sizes by reason of thecombination with a rotatory post of an endwise sliding arm; or, two ofthese holders may be employed one at each end of the rack. It will beobserved that by reason of the spring pressing the foot F toward therack, the frictional contact of the rod with its seat in the rod carrierwill prevent accidental endwise movement of the rod under ordinarycircumstances. While I prefer to make the rod round in cross section sothat it shall turn freely in its seat to permit a proper engagement ofthe presser foot with the leaf; yet the shapeof the rod might be suchthat itwould not turn round, in which case it would be advisable tomount the presser foot on the rod with a pivot or hinge joint to attainthe same end. By reason of the rod being mounted in the carrier wherebyit is pivoted to the rotatory post it may be of such size and shape incross section that it shall be practically rigid, so that it will not bebent under any handling to which it will ordinarily be subjected andwill therefore slide freely endwise through its seat in the carrier,whereas, if the carrier were not pivoted but were integral with, orrigidly connected to, the post, so that vertical vibration of the roddepended upon its own flexibility, there would be liability of itsbecoming permanently bent in such way as to interfere with its endwisemovements. Of course accidental endwise movement of the rod might beprevented by a set screw in the carrier in which case the spring mightbe omitted, and the presser foot may be weighted.

Having thus described the best Way known to me for carrying out myinvention I will state that I do not wish to be limited to the precisedetails of construction shown and described, because many modificationswill readily suggest themselves to persons skilled in the art to whichmy invention pertains without departing from the spirit thereof.

What I claim is- 1. The combination of the base provided with aninternal chamber, a rotatory post provided at its lower end with anoutwardly projecting flange seated in the chamber, and an arm pivoted tothe post and adapted to vibrate in a vertical plane, substantially asset forth.

2. The combination of the base provided with a chamber, a rotatory postsecured at its lower end within the chamber a carrier pivoted to thepost, and an arm mounted in the carrier and adapted to vibrate invertical planes, substantially as set forth.

3. The combination of a base, a rotatory post provided with a recess anarm carrier pivoted in the recess, and an arm vibrating with the armcarrier and movable relatively thereto, substantially as set forth.

4. The combination. of a base, a rotatory post, a rod carrier pivoted tothe post and provided with a seat for a rod, and a rod mounted in theseat and movable relatively thereto, substantially as set forth.

5. In a leaf holder, the combination of a base, a rotatory post mountedat its lower end in the base and provided at its upper end with adownward extending recess, a carrier pivoted in the recess andprojecting above the post, and a rod mounted in the carrier,substantially as set forth.

6. In a leaf holder, the combination of a base, a rotatory post mountedat its lower end in the base and provided at its upper end with adownward extending recess, a carrier pivoted in the recess andprojecting above the post, a rod mounted in the carrier, and a stop tolimit the upward movement of that end of the rod which engages with theleaf, substantially as set forth.

7. In a leaf holder,'the combination of a base, a rotatory post mountedon the base, a carrier pivoted at the upper end of the post, a rodmounted in the carrier, a spring to press one end of the rod down uponthe leaf, and a IIO stop to limit the tension of the spring, subper partof the post, and a rod mounted in stantially as set forth. the carrier,substantially as set forth. :0

8. In a leaf holder, the combination of a In testimony whereof Iaffix mysignaturein base made in two parts of which the upper presence of twowitnesses.

5 one is collar shaped, the base having a eham- EMAMUEL H. KOHR.

her, a rotatory post provided at its lower end Witnesses: with anoutwardly projecting flange seated HARVEY A. KOHR,

in the chamber, a carrier pivoted at the up- -B. F. NAILE.

